Former British Prime Minister Tony Blair's address book—including the names, phone numbers, and addresses of members of government, plus Blair's own National Insurance Number—was apparently leaked to the public by a group of hackers on Friday.

The group, Team Poison, claims to have accessed the Blair office's webmail server "via a private exploit" in December of last year. (Though the group said seperately that they've had the information "for 1 year now.") In the document, which was put up on Pastebin around 6:30 p.m. ET on Friday, the hackers claim that they "still have access to the webmail server, [sic] phone numbers may have changed but all the information is legit."

According to the Team Poison Twitter (manned by a hacker called "Trick"), the motive seems to be political—Blair is described as a "war criminal," and Trick seems to imply that those whose information is being released "supported the war in iraq." (How Team Poison knows that Blair's dentist, whose address and phone number appear in the file, was pro-war, is unclear.)

Two days ago, members of Team Poison gave an interview to FoxNews.com, presenting themselves as rivals to Lulz Security, the group that hacked websites related to Sony, the FBI, the CIA and the U.S. Senate, and whom Team Poison derides (in the interview) as "nothing but a bunch of script kiddies."